private async void Disconnect()
{
this.playbackService.PlaySoundFromFile(PlaybackService.SoundFiles.Disconnected);
var notifyEventArgs = new NotifyUIEventArgs()
{
NotificationType = NotificationType.ControlMode,
Name = "Parked",
Data = "Parked"
};
this.NotifyUIEvent(notifyEventArgs);
if (this.writer != null)
{
this.writer.DetachStream();
this.writer = null;
}
if (this.socket != null)
{
this.socket.Dispose();
this.socket = null;
}
var server = this.httpServer;
if (server != null)
{
await server?.Stop();
}
await this.commandProcessor.ExecuteCommandAsync(Commands.DriveStop);
this.displayManager.ClearRow(1);
this.displayManager.ClearRow(2);
this.displayManager.ClearRow(3);
Debug.Write("Disconected");
}
/// <summary>
/// Invoked when the socket listener accepts an incoming Bluetooth connection.
/// </summary>
/// <param name="sender">The socket listener that accepted the connection.</param>
/// <param name="args">The connection accept parameters, which contain the connected socket.</param>
private async void OnConnectionReceived(
StreamSocketListener sender,
StreamSocketListenerConnectionReceivedEventArgs args)
{
Debug.WriteLine("Connection received");
//if (this.isVoiceModeActive)
//{
// Debug.Write("Voice Mode Active!");
// this.SendMessage("Disconnecting device. Aucovei voice mode active.");
// return;
//}
try
{
this.socket = args.Socket;
}
catch (Exception e)
{
Debug.Write(e);
this.Disconnect();
return;
}
// Note - this is the supported way to get a Bluetooth device from a given socket
var remoteDevice = await BluetoothDevice.FromHostNameAsync(this.socket.Information.RemoteHostName);
var notifyEventArgs = new NotifyUIEventArgs()
{
NotificationType = NotificationType.ControlMode,
Name = "Bluetooth",
Data = remoteDevice.Name
};
this.NotifyUIEvent(notifyEventArgs);
this.writer = new DataWriter(this.socket.OutputStream);
var reader = new DataReader(this.socket.InputStream);
var remoteDisconnection = false;
this.playbackService.PlaySoundFromFile(PlaybackService.SoundFiles.Default);
Debug.Write("Connected to Client: " + remoteDevice.Name);
this.SendMessage("hostip:" + Helper.Helpers.GetIPAddress());
await Task.Delay(500);
this.SendMessage("Ready!");
// Set speed to normal
await this.commandProcessor.ExecuteCommandAsync(Commands.SpeedNormal);
this.displayManager.ClearRow(1);
this.displayManager.AppendImage(DisplayImages.BluetoothFind2, 0, 1);
this.displayManager.AppendText(" " + remoteDevice.Name, 20, 1);
// Infinite read buffer loop
while (true)
{
try
{
// Based on the protocol we've defined, the first uint is the size of the message
var readLength = await reader.LoadAsync(sizeof(uint));
// Check if the size of the displayName is expected (otherwise the remote has already terminated the connection)
if (readLength < sizeof(uint))
{
remoteDisconnection = true;
break;
}
var currentLength = reader.ReadUInt32();
if (currentLength == 0)
{
return;
}
// Load the rest of the message since you already know the length of the displayName expected.
readLength = await reader.LoadAsync(currentLength);
// Check if the size of the displayName is expected (otherwise the remote has already terminated the connection)
if (readLength < currentLength)
{
remoteDisconnection = true;
break;
}
var message = reader.ReadString(currentLength);
notifyEventArgs = new NotifyUIEventArgs()
{
NotificationType = NotificationType.Console,
Data = message
};
this.NotifyUIEvent(notifyEventArgs);
await this.commandProcessor.ExecuteCommandAsync(message);
Debug.Write("Received: " + message);
}
// Catch exception HRESULT_FROM_WIN32(ERROR_OPERATION_ABORTED).
catch (Exception ex) when((uint)ex.HResult == 0x800703E3)
{
Debug.Write("Client Disconnected Successfully");
break;
}
}
reader.DetachStream();
if (remoteDisconnection)
{
this.Disconnect();
Debug.Write("Client disconnected");
}
}
protected void NotifyUIEvent(NotifyUIEventArgs args)
{
this.NotifyUIEventHandler?.Invoke(this, args);
}